Web winding machine



May 9, 1950 P. J. CHRISTMAN WEB WINDING MACHINE 3 Sheets-Sheet 1 Filed April 2, 1948 INVHVTOR.

P. J. CHRISTMAN ma wmnms MACHINE May 9, 1950 3 Sheets-Sheet 2 Filed April 2, 1948 Patented May 9, 1950 UNITED STATES PATENT OFFIE WEB WINDING-MACHINE Peter J. Ohristman, Green Bay, Wis. Application April 2, 1948, Serial No. 18,527

' 13 Claims. (Cl. 242-56) This invention relates to improvements in winding machines, and more particularly to a machine for continuously converting a web of sheet material into relatively small rolls tobe marketed as toilet paper, paper toweling, or the like.

A general object of the invention is.to provide a winding machine having novel means for effecting a transfer of the web from the wound rolls on one mandrel to the empty cores on a succeeding mandrel and for effecting securement of the web ends while the apparatus is operating at full speed.

A further object of the invention is to provide an apparatus having novel mechanism arranged to apply adhesive, preferably in the form of spaced lines, to the moving web, together with means for severing the web at a predetermined place with respect to the place of application of the adhesive.

A further object of the invention is to provide M an apparatus of the class described having means for wrapping an adhesively coated, cut end portion of the web onto the cores of a succeeding mandrel while an advanced mandrel is still being wrapped.

A further object of the invention is to provide an apparatus of the class described wherein the free end of the web on an advanced nearly wound mandrel is treated with an adhesive so that said end will become sealed onto the rolls on said mandrel upon being wound into contact therewith.

A further, more specific object of the invention is to. provide a device of the class described wherein there is an oscillatory glue applying roll, and an oscillatory knife each mounted for independent swinging movement at a predetermined time in the cycle of operation.

A further object of the invention is to provide a device of the class described wherein lines of, adhesive are applied to a moving web by means of a disc roll which is oscillated between a source of glue and the moving web.

A further object of the invention is to provide a machine of the class described wherein transfer of the web to the empty cores is accomplished without the necessity of applying any substance, such as glue, to the empty cores prior to the transfer.

A further object of the invention is to provide a winding machine which is strong and durable, which is efficient in operation and which is otherwise well adapted for the purposes described.

With the above and other objects in view, the

invention consists of the improved winding machine, and all of its parts and combinations, as set forth in the claims, and all equivalents thereof.

In the drawing accompanying and forming a part of this application, wherein is disclosed one complete embodiment of the preferred form of the invention, and wherein the same reference numerals indicate the same parts in all of the views:

Fig. l is aside elevational view of a winding machine embodying the invention;

2 is a plan view of the machine shown in Fig, 3 is a vertical sectional view taken along the line 3-3 of Fig. 2;

Fig. 4 is a vertical sectional view taken approximately along the line 4- -4 of Fig. 2, showing the web being wound on a roll, and showing the oscillatory. glue roll advanced and in position to apply lines of glue to the web;

Fig. 5 is a view similar to Fig. 4 showing the oscillatory glue roll retracted, and showing the relationship of the parts immediately after the knife has severed the web; and

Fig. 6 is another view similar to Fig. 4 showing the relationship of the parts after the knife has been'retracted, and showing the web being wound on the cores of the succeeding mandrel with the roll on the advanced mandrel completely wound and sealed.

Referring more particularly to Figs. 1 and 2 of the drawing, the machine includes a suitable supporting frame having spaced side members In and H. A main shaft i2 is suitably journalled in the frame and is driven from an outside source through the pulley I3. The shaft 12 has fixed thereon a perforating bed roll M. The perforating bed roll I4 is preferably formed with a plurality of longitudinal slots [5 (see Figs. 4 to 6). Referring to Fig. l, the main shaft l2 has fixed thereon, preferably between the pulley l3 and the frame member l0; a gear Hi. The gear [6 meshes with and drives the gears ll, 18 and I9.

The gear I! is fixed to the end of a shaft 20 which has fixed thereon a transfer bed roll 2| which is preferably formed with a plurality of spaced circumferential grooves 22.

The gear I8 is fixed on a shaft 23, on which is fixed a perforating roll 24. The perforating roll is preferably formed with a plurality of Iongitudinally extending "rows of perforating projections 25 which cooperate with the longitudinal grooves IS in the perforating bed roll 14 to make spaced transverse rows of perforations 3 in the sheet material which passes between the rolls l4 and 24.

The gear I9 is rigidly mounted on a shaft 25 which has fixed thereon a puller roll 21. A gear 28 meshes with the gear I1 and is rigidly mounted on a shaft 29. Fixed on the shaft 29 is a slitter roll 35. The slitter roll 39 is preferably formed with a plurality of spaced disc knives which cooperate with the circumferential grooves 22 in the transfer bed roll 2| to slit the web into a plurality of narrower widths.

The main shaft |2 extends beyond the frame member H, and rigidly mounted on the projecting end of this shaft is a bevel gear 3|. A short shaft 32 is suitably mounted on the frame member H for rotation on a vertical axis, and has formed on the upper portion thereof a worm 33 (see Fig. 3). A bevel gear 34 meshes with the bevel gear 3| and is rigidly mounted on the shaft 32.

Journalled in and projecting outwardly from the frame member H is a short shaft 35. Fixedly mounted intermediate the length of the shaft 35 is a worm wheel 35 which meshes with the worm 33 of the shaft 32. Rigidly mounted in the shaft 35, preferably between the worm wheel 35 and the frame II, is a gear 31 which is preferably formed with a toothless gap 38. The gear 31 cooperates, in turn, with an intermittent gear 39 which is rigidly mounted on a mandrel holder shaft 48. The intermittent gear 39 is formed with three toothless gaps 4|.

Rigidly mounted on the outer end of the shaft 35 is a sprocket 42 which is connected to a sprocket 43 by an endless chain 44. The sprocket 43 is rigidly mounted on a shaft 45 on which is fixed a fixed glue roll 46. The glue roll rotates in a trough 41 which contains any suitable adhesive 48 (see Figs. 4 to 6).

The shaft 40 preferably carries a pair of spaced mandrel holding members 49 and 50 (see Fig. 2), each having three arms extending radially from a hub. The outer end of each arm forms a suitable bearing for a rotatable holder Each of the rotatable holders 5| at one side of the machine is equipped with a drive pulley 52. Mandrels 53 are removably insertable, in any well known manner, between the mandrel holders 49 and 58 in such a manner that when the drive [pulley 52 for a particular mandrel holder is rotated the attached mandrel 53 will be likewise rotated. Each of the mand'rels 53 is adapted to receive a plurality of cardboard cores 54 in such a manner as to cause rotation of the cores when they are in position on the mandrel.

Referring to Figs. 1 and 2, a friction drive pulley 55 is fixed to the main shaft l2, intermediate the perforating bed r011 l4 and the frame member It. The pulley 55 is connected by an endless belt 55 to a similar pulley 51 which is fixed on the shaft 58 at the top of the frame. Fixed on the shaft 58 adjacent the pulley 51 is a friction drive pulley 59. The pulley 59 drives an endless friction drive belt 59, which extends around belt tightening pulley 5|, an idler pulley 52, and an idler pulley 53 which is freely rotatable on the shaft 28. That portion of the friction drive belt 55 which extends between the pulleys 59 and 52 is always deflected, in the manner shown in Fig. 1, by engagement with certain of the mandrel driving pulleys 52. Thus, movement of the endless drive belt 59 causes rotation of those mandrels whose drive pulleys are in engagement with the drive belt 50.

Journalled in the frame member II and extending inwardly therefrom is a short shaft 54 on which is fixed a swinging arm 55. Similarly mounted on a short shaft 55 iournalled in the frame member |l is a swinging arm 51. A shaft 58 is journalled in the outer ends of the arms 55 and 51. and fixed 0n the shaft 55 is an oscillatory glue applying roll 59 which is normally in contact with the fixed glue roll 45. The roll 59 is preferably composed of a plurality of spaced discs 59' as shown in Fig. 2.

Referring to Figs. 4 to 6, the swinging arm 55 is formed with a pair of substantially oppositely disposed lugs 15 and 1|. A spring 12 which is suitably anchored on the frame member H and which is connected to the lug 1| urges the arm in a counterclockwise direction, thereby urging the oscillatory roll 59 into contact with the fixed glue roll 45. A solenoid 13 having a pair of electrical terminals 13' is suitably mounted on the frame member H, and the plunger of said solenoid is connected to the lug 10 of the arm 55 by means of a rod 14. An electric switch 15 (see Fig. 3) is mounted on the frame member H in any suitable manner which will permit its actuation by an arm 15 mounted on the outer face of the worm wheel 35.

The electric switch 15 is electrically connected with a source of electric power 92 by a wire 90, and said switch is connected to the solenoid 13 by a wire 9| connected to one of the terminals 13. The other terminal 13' is connected to the source by a wire 93. When the arm 16 actuates the electric switch 15, current flows into the solenoid 13, thereby energizin the solenoid 13 and causing the plunger to be drawn inwardly. This action causes a swinging movement of the arm 55 in a clockwise direction against the tension of 'the spring 12. This swinging movement transfers the oscillatory roll 69 from its contact with the fixed glue roll 45 to a position of contact with the web travelling around a portion of the transfer bed roll 2 I.

Freely rotatably mounted on the shaft 20 at the ends of the transfer bed roll 2| are a pair of swinging arms 15 and 11. Carried at the outer ends of the arms 15 and 11 is an elongated bar 18 upon which is mounted a knife 19, comprised of a plurality of serrated sections 80. The arm 11 (see Figs. 4 to 6) is formed with a pair of oppositely disposed lugs 8| and 82. A spring 83 which is suitably anchored to the frame member ID is connected to the lug 8| and urges the arms 15 and 11 in a clockwise direction. A solenoid 84 having a pair of electrical terminals 84' is suitably mounted on the frame member Hi, and the plunger thereof is connected to the lug 82 by means of a rod 85. Referring again to Fig. 3, an electric switch 85 is mounted on the frame member II in any suitable manner which will permit its actuation by an arm 81 mounted on the inner face of the worm wheel 35.

the arm 81 actuates the electric switch 85, current flows into the solenoid 84, thereby energizing the solenoid 84 to cause the plunger thereof to be drawn inwardly. This action causes a swinging movement of the arms 15 and 11 in a counterclockwise direction against the tension of the spring 83. This swinging movement moves 8 the blade 19 into a position to cut the web as will be hereinafter described.

Operation When the main shaft I2 is being driven, it will simultaneously cause rotation of the pull roll 21, the perforating roll 24, the transfer bed roll 2|, and the slitter roll 30. The bevel gears 3| and 34 will cause rotation of the worm wheel 35 which in turn will cause rotation of the sprocket 42 and the intermittent gear 31. Rotation of the sprocket 42 will cause rotation of the fixed glue roll 45 by means of the endless chain 44. The rotation of the glue roll 48 will impart rotation to the disc roll 59. In addition, the endless belt 56 will cause driving of the friction drive belt 50.

A web of toilet tissue, paper toweling or other sheet material is fed from a jumbo roll 88, and passes under the pull roll 21. It then passes over the top of the perforating bed roll I4, between the latter and the roll 24, under and around the transfer bed roll 2|, and between rolls 2! and 30. The web then extends beneath one of the mandrels 53 to the uppermost mandrel 53 whose cores 54 are being wound (see Fig. 4).

At the point in the winding operation where the cores on the uppermost mandrel are wound to nearly full condition with the amount of sheet material desired in the finished roll, the arm 16 on the worm wheel 36 will contact the switch 15 as shown in Fig. 3. This contact causes energization of the solenoid 13 with resultant downward movement of the plunger thereof and of the rod 14. This causes swinging movement of the oscillatory glue roll 69 from rolling contact with the fixed glue roll 46 to rolling contact with the moving web as shown in Fig. 4. By its contact with the fixed glue roll 46, the peripheries of the discs of the oscillatory roll 69 have become coated with adhesive, and contact of the coated disc roll with the moving web, as shown in Fig. 4, results in application of a line of adhesive to the moving web by each disc of the roll 69. These lines of glue are preferably 6 or '7 inches long. The disc roll 69 is maintained in contact with the moving web for a, predetermined length of time, and it then drops back to its normal position in contact with the fixed glue roll.

At this point the arm 81 on the worm wheel 36 contacts the switch 85 to cause energization of the solid 84 with resultant downward movement of the solenoid plunger and rod 85. This causes counterclockwise swinging movement of the knife 19 which thereby severs the web just above the lowermost mandrel 53, (as shown in Fig. at a point intermediate the length of the lines of glue applied thereto. The leading glued ends of the web are then, with the help of the knife 15 which serves as a transfer device, pressed into contact with the cores on the lowermost mandrel 53. This causes the web to be wound on the cores of this mandrel. Simultaneously, the gluebearing tail ends of that portion of the web which is winding 0n the rolls on the uppermost mandrel 53 seal themselves onto the finished wound rolls upon contact with said rolls. The knife 19 then swings back to its normal position immediately after the severing operation, as is shown in Fig. 6.

While it is preferred to have the tip portions of the knife 19 press the extreme ends of the cut web into contact with the cores on the mandrel 53, as shown in Fig. 5, this is not necessary as the rolling contact between the cores 54 on the lowermost mandrel 53 and the web will press part of the glued length of the web into contact with the cores. Thus, the ends will be wound on the cores regardless of whether the knife 13 actually pushes the extreme ends all of the way over, as in Fig. 5.

All of this time the drive pulleys 52 for the mandrel 53 which is being wound and for the next succeeding mandrel 53 are in engagement with the drive belt 60, as shown in Fig. 1, and said mandrels with the cores 54 thereon are being rotated. The third mandrel 53 is not being rotated and is in the position shown in Figs. 1 and 2 where the mandrel may be disconnected, the wound rolls removed, and a new set of cardboard cores 54 slipped thereon.

During the travel of the knife 19 to and from severing position, one of the blank spots 4| of the intermittent mandrel holder drive gear 39 is opposite the blank spot 38 of the intermittent gear 31. This causes a momentary dwell in the rotation of the mandrel holder on the shaft 40. The mandrel holder will again start to rotate after its momentary dwell and the newly started rolls on the lower mandrel will then move upwardly. The latter rolls are being continually wound, as shown in Fig. 6, as they move upwardly. By the time they reach the uppermost position they are nearly fully wound, and at the same time the fully wound rolls are being moved by the mandrel holder to the removal position.

It is apparent that the winding operation is continuous, even while the web is being transferred from the wound rolls on one mandrel to the empty cores on the succeeding mandrel. The invention makes possible the automatic transfer of theweb at full winding speed after a predetermined length of web has been wound on the cores of the uppermost mandrel. Due to the novel mechanism which applies adhesive to the moving web there is no. necessity for applying any substance to the empty cores at any time during the winding operation.

While the intermittent drive shown is the preferred drive for the mandrel holder 49 in order to obtain more efiicient operation of the transfer mechanism, nevertheless the invention may be utilized in connection with a continually rotating mandrel holder. In addition, other controls may be used to operate the oscillatory roll 69 and the knife 19 in lieu of the switches 15 and 86 and the solenoids l3 and 84.

Various other changes and modifications may be made without departing from the spirit of the invention, and all of such changes are contemplated, as may come within the scope of the claims.

What I claim is:

1. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, means for applying an adhesive at spaced intervals to portions of the moving web prior to the engagement of said portions with the succeeding mandrel, mechanism for periodically severing the web at a point between said two last mentioned mandrels and adjacent said adhesive bearing portions, and means for so timing the operation of said severing mechanism with respect to the location or the adhesive on the web that there is adhesive on the severed leading end of the web to adhere to the succeeding mandrel.

2. ma winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, means for applying an adhesive at spaced intervals to portions of the moving web prior to the engagement of said portions with the succeeding mandrel, and mechanism for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions so that part of the adhesive is on each side of the line of severance.

3. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path 01 the web which is being wound on an advanced mandrel, means for applying an adhesive at spaced intervals to portions of the moving web prior to the engagement of said portions with the succeeding mandrel, and an oscillatory knife for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions.

4. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, means for applying an adhesive at spaced intervals to portions of the moving web prior to engagement of said portions with the succeeding mandrel, an oscillatory knife for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions, and solenoid means for actuating said oscillatory knife.

5. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, 'circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, an oscillatory roll for applying adhesive at spaced intervals to portions of the moving web prior to the engagement of said portions with the succeeding mandrel, and mechanism for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions.

6. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder,

means for rotating each mandrel during part oi its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, an oscillatory roll for applying adhesive at spaced intervals to portions of the moving web pnior to the engagement of said portions with the succeeding mandrel, mechanism for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions, and solenoid means for actuating said oscillatory roll.

7. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, means for applying an adhesive at spaced intervals to portions of the moving web prior to the engagement of said portions with the succeeding mandrel, mechanism for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions, and timing mechanism associated with the adhesive applying means and with the severing mechanism for causing said severance to take place at predetermined times with respect to the application of the adhesive.

8. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, means for applying an adhesive at spaced intervals to portions of the moving web prior to the engagament of said portions with the succeeding mandrel, mechanism for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions, and timing mechanism associated with the adhesive applying means and with the severing mechanism and responsive to the rotation of the mandrel holder for controlling the operation of said adhesive applying means and said severing mechanism,

9. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, oircumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to ad vance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, an oscillatory roll for applying an adhesive at spaced intervals to portions of the moving web prior to the engagement of said portions with the succeeding mandrel, solenoid means for actuating said oscillatory roll, an oscillatory knife for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive 9 bearing portions, and solenoid means for actuating said oscillatory knife.

10. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, an oscillatory roll for applying an adhesive at spaced intervals to portions of the moving web prior to the engagement of said portions with the succeeding mandrel, solenoid means for actuating said oscillatory roll, an oscillatory knife for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions, solenoid means for actuating said oscillatory knife, and timing mechanism associated with said oscillatory roll and oscillatory knife and responsive to the rotation of the mandrel holder for controlling the operation of said oscillatory roll and said oscillatory knife.

11. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle ofmovement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, a roll oscillatable between a source of adhesive and the web for applying an adhesive at spaced intervals toportions of the moving web prior to the engagement of said portions with the succeeding mandrel, yielding means for normally maintaining said roll out of contact with the web, means including a solenoid for actuating said oscillatory roll into contact with the web, an oscillatory knife for periodically transversely severing the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions, yielding means for normally maintaining said knife in inoperative position, and means includng a solenoid for actuating said oscillatory knife.

12. In a winding machine for continuously winding a traveling web into rolls, a rotary mandrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, a roll oscillatable between a source of adhesive and the web for applying an adhesive at spaced intervals to portions of the moving web prior to the engagement of said portions with the succeeding mandrel, yielding means for normally maintaining said roll out of contact with the web, an oscillatory knife for periodically transversely severing'the web at a point between said two mandrels and intermediate the length of each of said adhesive bearing portions, and yielding means for normally maintaining said knife in inoperative position.

13. In a winding machine for continuously winding a traveling web into rolls, a rotary mendrel holder, circumferentially spaced rotatable mandrels supported in said mandrel holder, means for rotating each mandrel during part of its cycle of movement to wind the web thereon, means for rotating the mandrel holder to advance a succeeding mandrel into the path of the web which is being wound on an advanced mandrel, means for applying an adhesive at spaced intervals to the moving web, mechanism for periodically severing the web adjacent the adhesive bearing portions thereof, and means for causing a momentary pause in the rotation of the mandrel holder during the severing operation.

PETER J. CHRISTMAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

